Introduction The following diagram shows the system schematic of the Smart Plant Feeder. It contains the several major blocks: ATmega 323 is the CPU of the system. 5 VDC power supplier: an adaptor first transforms 110 VAC 60 Hz into 9 VDC; then a regulator keeps VCC stable at 5 VDC. A crystal of 32KHz […]
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This is a poor man’s geyser. It also saves electricity. The temperature is controlled by a microcontroller i.e., Digispark Attiny85. Please do watch my 2nd version https://www.instructables.com/id/Temperature-Controlled-Water-Heater-20/ Step 1: Parts Needed Plastic enclosure 12v 500ma step down transformer Relay board Digispark Attiny85 Switches Buzzer Led Temperature sensor Mains cord 3pin Mains Socket 4.7k resistor Step
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Three-fourths of the earth is water, out of which 97 per cent is saline (in oceans, seas and groundwater). The remaining 2.5 per cent to 2.75 per cent is fresh water, out of which 1.75 per cent to two per cent is frozen in glaciers, ice and snow. Fresh groundwater and soil moisture constitutes only
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The Water Level Indicator employs a simple mechanism to detect and indicate the water level in an overhead tank or any other water container. The sensing is done by using a set of nine probes which are placed at nine different levels on the tank walls (with probe 9 to probe 1 placed in increasing
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